Gas pressure control valve with filtering device

Abstract

The utility model discloses a gas pressure control valve with a filter device, which comprises a valve body, a gas inlet pipe is arranged on one side of the valve body, and a filter structure is mounted on the gas inlet pipe. The filter structure comprises a base body arranged on the side face of the air inlet pipe, a threaded groove is formed in the base body, a sleeve is in threaded connection with the interior of the threaded groove, a hole body is formed in the sleeve in a penetrating mode, a T-shaped connecting block penetrates through the hole body, and a filter screen is arranged on the inner end face of the T-shaped connecting block and extends into the air inlet pipe. The threaded groove is connected with the sleeve, connection and disassembly are convenient, the filter screen is cylindrical, the filter area can be enlarged, and the valve has the advantages that blockage of the valve body is reduced, impurities can be conveniently cleaned, the whole welding system can be cleaned, the valve can be prevented from being damaged, and the service life is prolonged; the buffering sealing gasket and the soft cushion can play a buffering role and can also play a sealing role.

Description

Technical Field

[0001] The utility model relates to the technical field of control valves, in particular to a pressure control valve with a filtering device. Background Art

[0002] Pressure control valves are a general term for valves that control pressure. Commonly, these valves are collectively referred to as pressure control valves. Pressure control valves, sometimes simply referred to as pressure valves, are primarily used to meet the force or torque requirements imposed on actuators. These valves include safety valves, relief valves, pressure reducing valves, and sequence valves.

[0003] During the gas welding process, a control valve is needed to control the gas pressure. The following shortcomings are found during use:

[0004] Impurity blockage: If there are impurities in the gas, such as dust, grease or other particles, they may enter the valve and block the valve or affect its normal operation. This may cause the valve to fail or fail to achieve the expected control effect.

[0005] Valve damage: Impurities entering the valve interior may cause damage to the valve's mechanical components, such as the valve core or seals. This may cause the valve to leak or fail, requiring more frequent maintenance and replacement.

[0006] System contamination: If impurities inside the valve are released into the system, the entire gas system may be contaminated. This may affect the performance of other components in the system and even affect the production or operation process.

[0007] Unstable control: If the valve is affected by impurities, it may cause unstable or inaccurate pressure control. This may affect the normal operation of the system, leading to quality problems or safety hazards in the production process. Utility Model Content

[0008] In view of the above-mentioned deficiencies in the prior art, the utility model provides a pressure control valve with a filtering device, which has a simple structure, can prevent valve clogging, and increase the service life of the valve.

[0009] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is:

[0010] A gas pressure control valve with a filtering device comprises a valve body. An air inlet pipe is provided on one side of the valve body, and a filter structure is installed on the air inlet pipe.

[0011] Furthermore, the filter structure includes a base body arranged on the side of the air intake pipe, a threaded groove is opened on the base body, a sleeve is threadedly connected to the threaded groove, a hole body is passed through the sleeve and a T-shaped connecting block is provided through the hole body, and a filter screen is provided on the inner end face of the T-shaped connecting block and extends into the air intake pipe.

[0012] Furthermore, the filter screen is made of stainless steel and has a cylindrical shape.

[0013] Furthermore, a buffer sealing gasket is provided on the outside of the filter screen and in contact with the T-shaped connecting block.

[0014] Furthermore, a soft cushion is provided at one end of the filter screen away from the T-shaped connecting block.

[0015] The beneficial effects of the utility model are:

[0016] The threaded groove provided in the utility model is connected with the sleeve, which is convenient for connection and disassembly. The filter screen is cylindrical in shape, which can expand the filtering area, reduce valve body blockage, facilitate impurity cleaning, clean the entire welding system, prevent valve damage, and increase service life. The buffer seal and soft pad can play both a buffering role and a sealing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the first structure of the filtering device of the present utility model;

[0019] Figure 3 This is a second structural schematic diagram of the filtering device of the present invention.

[0020] Figure 4 This is a schematic diagram of the filter screen structure of the second structure of the filter device of the present invention.

[0021] Reference table of accompanying symbols:

[0022] 1. Valve body; 2. Air inlet pipe; 3. Filter structure; 4. Base; 5. Sleeve; 6. T-type connecting block; 7. Filter screen; 8. Buffer seal; 9. Soft pad; 10. Filter plate; 11. Threaded pressure block; 12. Sealing sleeve. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0024] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0026] Example 1

[0027] like Figures 1 to 2 As shown, a gas pressure control valve with a filtering device includes a valve body 1. An air inlet pipe 2 is provided on one side of the valve body 1, and a filter structure 3 is installed on the air inlet pipe 2. The filter structure 3 includes a base 4 arranged on the side of the air inlet pipe 2. The base 4 is cylindrical in shape, which facilitates the formation of a threaded groove in the base 4. A sleeve 5 is threadedly connected to the threaded groove. The sleeve 5 is provided with a hole through which a T-shaped connecting block 6 is provided. A filter screen 7 is provided on the inner end surface of the T-shaped connecting block 6 and extends into the air inlet pipe 2. The filter screen 7 is made of stainless steel to improve its service life. The filter screen 7 is cylindrical in shape, which can increase the filtration area and also enables double-layer filtration to achieve a good filtration effect.

[0028] A buffer seal 8 is provided on the outside of the filter screen 7 and in contact with the T-shaped connecting block 6. A soft pad 9 is provided at the end of the filter screen 7 away from the T-shaped connecting block 6. The buffer seal 8 and the soft pad 9 have the functions of buffering pressure and sealing respectively.

[0029] During the use of this structure, the filter screen 7 is fixedly connected to the T-shaped connecting block 6, and then the buffer seal 8 is put on the end of the filter screen 7 away from the T-shaped connecting block 6 to make it fit with the T-shaped connecting block 6. A soft pad 9 (detachable) is set on the other end of the filter screen 7, which can be connected by bonding. In this way, the whole structure is extended into the air intake pipe 2, and the external thread of the sleeve 5 is engaged with the thread groove, so that the filter screen 7 is installed.

[0030] Example 2

[0031] like Figure 1 、 3 -4, comprising a valve body 1, a base 4 is provided on the air inlet pipe 2, a threaded groove is provided on the base 4, and a mounting groove is provided in the groove to extend into the air inlet pipe 2, a filter plate 10 is installed in the mounting groove, and the principle of setting the filter plate 10 is that the closer to the valve body 1, the smaller the mesh size, the threaded groove is provided with an internal thread, and the thread of the threaded groove is provided with a threaded pressing block 11, and the outer side of the filter plate 10 is wrapped with a sealing sleeve 12.

[0032] During use, the sealing sleeve 12 is put on the filter plate 10 and placed in the corresponding installation groove in sequence, and then the threaded pressing block 11 is tightened to press the filter plate 10.

[0033] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the scope of protection of the present utility model patent.

Claims

1. A gas pressure control valve with a filtering device, comprising a valve body (1), characterized in that: An air intake pipe (2) is provided on one side of the valve body (1), and a filter structure (3) is installed on the air intake pipe (2).

2. A gas pressure control valve with a filtering device according to claim 1, characterized in that: The filter structure (3) comprises a base (4) arranged on the side of the air intake pipe (2), the base (4) being provided with a thread groove, a sleeve (5) being threadedly connected in the thread groove, a hole body being passed through the sleeve (5) and a T-shaped connecting block (6) being provided through the hole body, a filter screen (7) being provided on the inner end surface of the T-shaped connecting block (6) extending into the air intake pipe (2).

3. A gas pressure control valve with a filter device according to claim 2, characterized in that: The filter screen (7) is made of stainless steel and is cylindrical in shape.

4. A gas pressure control valve with a filter device according to claim 3, characterized in that: A buffer sealing pad (8) is provided on the outside of the filter screen (7) and in contact with the T-shaped connecting block (6).

5. A gas pressure control valve with a filter device according to claim 4, characterized in that: A soft pad (9) is provided at one end of the filter screen (7) away from the T-shaped connection block (6).

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